1. Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11000 Beograd, Serbia
2. Faculty of Electrical Engineering, University of Banja Luka, Patre 5, 78000 Banja Luka, Bosnia and Herzegovina
3. Department of Mathematics and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
4. School of Computer, Data and Mathematical Sciences, Western Sydney University, Sydney, NSW 2150, Australia